The ball is played into the centre forwards feet.Nearest centre back applies pressure to the ball.Centre Midfielder(red mark) drops into the gap left by the centre back ensuring a tight compact shape in defence.One of the other Centre Mids must now fill in the gap in front of the defence.
Central midfielder(red mark) has a role to help his defence by compensating for the gaps made by the movement of his defence.The focus for the Centre Midfielder is to work with his centre backs.In this situation the left back doesnt succeed in stopping the blue attacker going past him ,so the nearest centre back puts pressure on the ball while the Centre Midfielder takes up his position to keep the defensive line compact.
